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' 2 Sheets-Sheet 1. T. JEFFERIS.

Heating- Drum. v No. 91,940. Patented June 29, 1869.

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Heating Drum.

.Patented June 29, 1869.

' drawings, forming part of this" specification, in whichshowing my improved distributer applied theretd;

through the plane of the line a: x,-

parts in the several figures.

' which access may be had to the interior of the same.

6311121211 States aunt jijii. N

Letters Patent N 91,940, dated June 29, 1869.

HEATINGFDRIIM.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom it may concern Be it known that I, THOMAS JEFFERIS, of Council Bluffs, Pottawatomie county, State of Iowa, have invented a new and useful Improvement in Heat-Distributers for Stove-Drums; and I do hereby declare the following to be. a full, clear, and exact description of the same, which will enable others skilled in the art to which my invention appertains, to make and use the same, reference being had to the accompanying Figure 1, Sheet I, representsa side elevation of a rectangular heating-drum, having horizontal fines, and

Figure 2, Sheet I, represents an edge view of the same; Figure 3, Sheet I, represents the drum and dist-ributers;

Figure 4, Sheet I, is a transverse section of fig. 3,

a perspective view of 1 Figure 5, Sheet II, is a side view of a cylindrical drum, showing the distributer in dotted lines;

Figure 6, Sheet II, is a perspective view of the same- Figure 7, Sheet II, shows an end elevation -"of the cylindrical drum and Figure 8, Sheet II, is a; plan view of a distributer for a heating-drum, having vertical flnes.

, Similar letters of reference indicate corresponding This invention relates to stove-drums, and has for its'objcct to distribute the heat equally throughout their entire inner surface.

a The invention consists in the arrangement of metal plates, having suitable slots or perfiirations within the drum, between the lieat-supply anddischarge-pipes.

In fig. 1, Sheet I, is represented a rectangular drum, 0, provided with the hen I; supply-pi pe A, and dischargepipe A, arranged upon the bottom and top respectively.

B is a series of horizontal lines, for the passage of air; and v D is a door upon the narrow side of the drum, through In this example of my invention, two distributers are employed, marked K. They are composed each of a sheet, or other metal plate, provided with a series of parallel slots, 2:, as shown in fig. 4. n

These plates K are arrangedabove and below the series of air-fines B, and the heat-supply and discharge-pipes A A. 7

It is designed to so construct the distributers, that they may either extend the whole width of the drum,

or only to the outside rows of the fines B, as shown in figs. 1 and 3.

The distributers may be either permanently secured in place, or adapted to slide through the sides of the drum, as desired.

The drum may have any desired capacity above that of the pipes A A, but the openings-X in the distribute]; musthave, in the aggregate, a draught-capacity at least equal to that of the pipes A A, with an addition thereto, if desired, of from twenty-five per cent., to one hundred per cent, (according, in inverse proportion, to the force of the draught in theflue, or chimney,) for heat-expansion.

The openings in the distributers may be of any preferred shape. 7

By this arrangement, the heated currents entering through the pipe A, will be arrested by the lower plate K, and allowed to pass only through the openings X; and as these are arranged at intervalsacross, or nearly across the drum, the ascending currents will be evenly distributed throughout the entire drum, finding escape only through the openings in the upper plate.

In drums, as ordinarily constructed, the heated currents ascend centrally thereof, and only those portions are heated which lie in line with the supply and dis charge-pipes.

In 5, Sheet II, a cylindrical drum, G, is shown, composed of an inner and outer cylinder, of unequal diameters, arranged concentrically with each other,

the supply and discharge-pipes A and A'Vbeing placed;

at opposite ends.

One end of this drum is supported upon the stove, or other heater, by means of the short support J In a drum of this construction, the plates K K are of annular form, and secured, at a suitable distance apart, between the inner and outer cylinders, and between the pipes A A, as shown in dotted lines.

Each plate is provided with a series of concentric openings, :2: 2:, as shown in dotted lines, fig. 7.

Having thus described my invention,

\Vhat I claim as new, and desire to secure by Letters Patent, is 1 The arrangement, within the heating-drum, of the perforated heat-distributing plates K, with relation to the air-flues, and heat-supply anddischarge-pipes A A, substantially as described, for the purpose specified- THOMAS. JEFFERIS. Witnesses:

D. O. BLooMnR, J. D. Enmusnson. 

